Installation and connection
3.4 Electrical connection
FIDAMAT 6-G
Operating instructions, 07/2006, A5E00478463
3-7
Sample gas
The sample gas is fed to the FIDAMAT 6-G unheated through a solenoid valve.
Note
The sample gases must be fed to the device dust-free. To avoid condensation, in most
applications a gas preparation adapted to the measuring task is necessary.
Supply gas
The supply gases (hydrogen, combustion air) must have a purity level of at least 5.0 if
correct measurement is to be assured. The purity level of the supply gases will need to be
increased (e.g. to 6.0) in the case of very low hydrocarbon concentrations (<1 ppm), such as
can occur in ultra-pure gases. Adapt the purity level of the zero gas to suit the measurement
task, e.g. by re-cleaning using a molecular sieve or a comparable gas cleaning method.
Provide the supply gas with a relative admission pressure of between 2000 and 4000 hPa.
The pressure of zero gas and test gas is around 3000 hPa. Higher pressure will result in
increased gas consumption while lower pressure could possibly lead to incorrect calibration.
3.4
Electrical connection
Warning
For the electrical installation, observe VDE 0100 or an equivalent international standard for
setting up high-voltage systems having nominal voltages under 1000 V.
Failure to comply with these regulations can result in death, physical injury and/or material
damage.
3.4.1
Mains connection
•
The device is supplied with a rubber connector which may only be connected to the
mains supply line by qualified personnel. The mains supply line must comply with the
valid regulations and conditions for the place of installation and be provided with a
protective conductor, which lies at the potential of the housing. The cross-section of each
wire must be ≥ 1 mm². Connect the connection line with the leading phase in the plug
connector at the marked spot.
•
Route the mains line separately from the signal lines.